1771-IAN PLC 5 Digital AC/DC Input Module
Brand: Allen-Bradley | Manufacturer: Rockwell Automation
The 1771-IAN module converts 120V AC/DC field signals to logic levels for the PLC processor. It directly updates the data table bits. This 32-input module supports 4 isolated groups of 8 channels. It offers reliable on/off control for pushbuttons, limit switches, and motor starters.
Technical Specifications
- Catalog No.: 1771-IAN
- Inputs: 32 (4 sets of 8)
- Voltage Category: 120V AC/DC
- AC Operating Range: 85–138V AC
- Backplane Current: 280 mA
- Max AC Off-State Current: 3.0 mA
- Max DC Off-State Current: 0.8 mA
- AC Signal Delay (On): 10 ms (±7 ms)
- AC Signal Delay (Off): 20 ms (±15 ms)
- Power Dissipation: 7W max
- Thermal Dissipation: 24.1 BTU/hr
- Dimensions: 3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
- Wiring Arm: 1771-WN (included)
Key Features & Diagnostics
- Optoelectrical isolation protects against transients.
- Input filtering reduces electrical noise.
- Front-panel 32 red status LEDs for each input.
- Supports ½ and 1-slot I/O addressing.
- Series A design with keying bands (upper: pins 20-22; lower: 16-18).
- Diagnostic capability: LED state indicates field signal presence.
Installation & Compatibility
- Mounts in 1771 I/O chassis with a PLC-5 processor.
- Removable wiring arm (1771-WN) allows module swap without rewiring.
- Compatible with standard PLC-5 addressing.
- No special tools required for installation.
Environmental & Certifications
- Operating Temperature: 0–60 °C
- Storage Temperature: -40–85 °C
- Relative Humidity: 5–95% (non-condensing)
- Certified for industrial control applications.
Typical Applications
- Factory automation input sensing.
- Conveyor and material handling systems.
- Packaging machinery and assembly lines.
- PLC-5 based legacy control upgrades.
Package Includes
- 1771-IAN module (Series A).
- 1771-WN wiring arm.
- Installation instructions (digital copy).
Why Buy From Oiltech Controls?
- Over 15 years of industrial automation spare parts expertise.
- Global shipment via FedEx, UPS, DHL.
- All parts are tested (surplus/refurbished options).
- 12-month warranty on all products.
- Technical verification before dispatch.
- Expert support for obsolete control systems.
Frequently Asked Questions
Q: Does this module support DC operation?
A: Yes, it accepts 120V DC signals with 0.8 mA off-state current.
Q: Is the wiring arm included?
A: Yes, the 1771-WN wiring arm is included.
Q: Can I use this with a Modicon Quantum system?
A: This is a PLC-5 module. For Modicon Quantum parts, visit Modicon Quantum Series.
Q: What is the on-delay time?
A: Typical on-delay is 10 ms (±7 ms).
Shipping & Contact
We ship globally using FedEx, UPS, DHL. For inquiries, email info@oiltechcontrols.com or WhatsApp +86 158 8020 0923.
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